/* roulang page: index */
:root{
  --bg-dark:#0A0F1E;
  --bg-dark-2:#111827;
  --bg-dark-3:#0d1322;
  --bg-light:#F5F7FA;
  --bg-light-2:#ffffff;
  --primary:#00E5A0;
  --primary-hover:#00C48A;
  --primary-glow:rgba(0,229,160,0.35);
  --accent:#FF6B35;
  --text-primary:#E8EDF4;
  --text-secondary:#94A3B8;
  --text-dark:#1E293B;
  --text-muted:#64748B;
  --radius-card:16px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-dark:0 10px 40px rgba(0,0,0,0.4);
  --shadow-light:0 6px 30px rgba(15,23,42,0.08);
  --border-light:rgba(255,255,255,0.12);
  --transition:all 0.3s ease;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en:"Roboto Condensed","Oswald","Bebas Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-primary);
  background:var(--bg-dark);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:15px}
ul{list-style:none}

::selection{background:var(--primary);color:#0A1A14}

.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

/* 按钮 */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#0A1A14;font-weight:700;
  padding:14px 32px;border-radius:var(--radius-btn);font-size:16px;
  box-shadow:0 0 24px var(--primary-glow),0 4px 12px rgba(0,0,0,0.3);
  transition:var(--transition);line-height:1.2;border:none;
}
.btn-primary:hover{
  background:var(--primary-hover);transform:translateY(-2px);
  box-shadow:0 0 32px var(--primary-glow),0 6px 16px rgba(0,0,0,0.35);
}
.btn-primary:active{transform:scale(0.98)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.06);color:#fff;font-weight:600;
  padding:14px 32px;border-radius:var(--radius-btn);font-size:16px;
  border:1px solid rgba(255,255,255,0.2);backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);transition:var(--transition);
}
.btn-ghost:hover{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.35);transform:translateY(-2px)}
.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-dark);color:var(--primary);font-weight:700;
  padding:13px 30px;border-radius:var(--radius-btn);font-size:15px;
  border:1px solid rgba(0,229,160,0.4);transition:var(--transition);
}
.btn-dark:hover{background:#0f172a;box-shadow:0 0 16px rgba(0,229,160,0.2);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-weight:600;font-size:15px;
}
.btn-link i{transition:transform 0.3s ease}
.btn-link:hover i{transform:translateX(4px)}
.btn-link:hover{color:var(--primary-hover)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.14);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:8px 20px;border-radius:var(--radius-pill);
  font-size:13px;letter-spacing:0.5px;font-weight:500;color:var(--text-primary);
}
.badge-dot{
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}

/* Header 导航 */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(10,15,30,0.85);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  height:72px;display:flex;align-items:center;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;width:100%;
}
.logo{
  display:flex;align-items:center;gap:8px;
}
.logo-text{
  font-size:24px;font-weight:900;color:var(--text-primary);
  letter-spacing:0.5px;
}
.logo-text span{color:var(--primary)}
.logo-sub{
  font-family:var(--font-en);font-size:10px;letter-spacing:2px;
  color:var(--text-secondary);text-transform:uppercase;
  border-left:1px solid rgba(255,255,255,0.2);padding-left:10px;
  line-height:1.2;
}
.main-nav{display:flex;align-items:center;gap:36px}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--text-secondary);
  padding-bottom:6px;position:relative;transition:var(--transition);
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  border-radius:2px;transition:width 0.3s ease;
}
.main-nav a:hover{color:var(--text-primary)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{width:100%}
.header-cta{display:flex;align-items:center;gap:16px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:8px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);
}
.hamburger i{font-size:20px;color:var(--text-primary)}
.mobile-nav{
  position:fixed;top:72px;right:0;bottom:0;width:320px;max-width:85vw;
  background:var(--bg-dark-2);z-index:999;padding:40px 30px;
  transform:translateX(100%);transition:transform 0.4s cubic-bezier(0.22,1,0.36,1);
  border-left:1px solid rgba(255,255,255,0.08);overflow-y:auto;
}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{
  display:block;padding:14px 0;font-size:17px;font-weight:600;
  color:var(--text-primary);border-bottom:1px solid rgba(255,255,255,0.06);
}
.mobile-nav a.active{color:var(--primary)}
.mobile-nav .btn-primary{width:100%;margin-top:26px}

/* Hero */
.hero{
  position:relative;min-height:95vh;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,15,30,0.92) 0%,rgba(10,15,30,0.68) 50%,rgba(0,0,0,0.75) 100%);
  z-index:1;
}
.hero::after{
  content:'';position:absolute;top:-20%;right:-10%;width:600px;height:600px;
  background:radial-gradient(circle,rgba(0,229,160,0.12) 0%,transparent 70%);
  z-index:1;pointer-events:none;
}
.hero-lightband{
  position:absolute;top:30%;left:-10%;width:120%;height:80px;
  background:linear-gradient(105deg,transparent 0%,rgba(0,229,160,0.08) 40%,rgba(0,229,160,0.04) 60%,transparent 100%);
  transform:rotate(-8deg);z-index:1;
}
.hero-lightband-2{
  position:absolute;bottom:25%;left:-5%;width:100%;height:60px;
  background:linear-gradient(110deg,transparent,rgba(255,107,53,0.06),transparent);
  transform:rotate(-14deg);z-index:1;
}
.hero-watermark{
  position:absolute;right:2%;bottom:10%;font-family:var(--font-en);
  font-size:13vw;font-weight:700;color:rgba(255,255,255,0.03);
  line-height:1;z-index:1;pointer-events:none;letter-spacing:4px;
}
.hero .grid-container{position:relative;z-index:2;width:100%}
.hero-content{padding-top:100px;padding-bottom:80px}
.hero h1{
  font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.3;
  color:var(--text-primary);margin:26px 0 18px;
  max-width:700px;
}
.hero h1 .highlight{color:var(--primary);position:relative}
.hero-sub{
  font-size:18px;color:var(--text-secondary);line-height:1.7;
  max-width:520px;margin-bottom:40px;
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,0.08);padding-top:28px;max-width:760px;
}
.stat-item{text-align:left;padding:0 24px 0 0}
.stat-item+.stat-item{border-left:1px solid rgba(255,255,255,0.08);padding-left:24px}
.stat-num{
  font-family:var(--font-en);font-size:40px;font-weight:700;
  color:var(--primary);line-height:1;text-shadow:0 0 20px var(--primary-glow);
}
.stat-label{font-size:13px;color:var(--text-secondary);margin-top:8px}

/* Section 通用 */
.section{padding:90px 0}
.section-header{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:48px;flex-wrap:wrap;gap:16px;
}
.section-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--primary);
  letter-spacing:1px;text-transform:uppercase;
}
.section-tag::before{
  content:'';width:20px;height:2px;background:var(--primary);
  border-radius:2px;
}
.section h2{font-size:32px;font-weight:800;margin-top:8px;line-height:1.3}
.section-dark h2{color:var(--text-primary)}
.section-light h2{color:var(--text-dark)}

/* 品牌故事区 */
.brand-section{background:var(--bg-light);color:var(--text-dark)}
.brand-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:center}
.brand-text p{font-size:16px;line-height:1.9;color:var(--text-muted);margin-bottom:20px}
.brand-text p strong{color:var(--text-dark)}
.brand-img-wrap{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-light);aspect-ratio:4/3;
}
.brand-img-wrap img{width:100%;height:100%;object-fit:cover}
.brand-img-wrap::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(10,15,30,0.5) 100%);
}
.brand-icons{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px;
}
.brand-icon-item{text-align:left}
.icon-circle{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,rgba(0,229,160,0.15),rgba(0,229,160,0.05));
  display:flex;align-items:center;justify-content:center;
  margin-bottom:12px;border:1px solid rgba(0,229,160,0.2);
}
.icon-circle i{color:var(--primary);font-size:17px}
.brand-icon-item h4{font-size:15px;font-weight:700;color:var(--text-dark);margin-bottom:4px}
.brand-icon-item p{font-size:13px;color:var(--text-muted);line-height:1.5}

/* 精选内容 */
.featured-section{background:var(--bg-dark);position:relative}
.featured-section::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent),transparent);
}
.content-card{
  background:rgba(255,255,255,0.06);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius-card);
  overflow:hidden;display:block;height:100%;
  transition:var(--transition);
  display:flex;flex-direction:column;
}
.content-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,229,160,0.4);
  box-shadow:0 16px 40px rgba(0,0,0,0.4),0 0 20px rgba(0,229,160,0.06);
}
.card-img-wrap{
  aspect-ratio:16/9;overflow:hidden;position:relative;
  background:var(--bg-dark-2);
}
.card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.content-card:hover .card-img-wrap img{transform:scale(1.05)}
.card-tag{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(0,229,160,0.9);color:#0A1A14;
  font-size:12px;font-weight:700;padding:4px 14px;border-radius:var(--radius-pill);
}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:8px;color:var(--text-primary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{font-size:14px;color:var(--text-secondary);line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid rgba(255,255,255,0.06);font-size:13px;color:var(--text-secondary)}
.card-footer .read-more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.content-card-col{margin-bottom:24px}
.empty-state{
  text-align:center;padding:60px 20px;background:rgba(255,255,255,0.03);
  border:1px dashed rgba(255,255,255,0.15);border-radius:var(--radius-card);
}
.empty-state i{font-size:32px;color:var(--text-secondary);margin-bottom:12px;display:block}
.empty-state p{color:var(--text-secondary);font-size:15px}

/* 信任区 */
.trust-section{background:var(--bg-light);color:var(--text-dark)}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.partner-wall{
  background:var(--bg-light-2);border-radius:var(--radius-card);
  padding:40px;box-shadow:var(--shadow-light);
  border:1px solid #e2e8f0;
}
.partner-wall h3{font-size:16px;font-weight:700;color:var(--text-dark);margin-bottom:24px;display:flex;align-items:center;gap:8px}
.partner-wall h3 i{color:var(--primary)}
.partner-logo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.partner-logo{
  background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;
  padding:18px 12px;text-align:center;font-size:13px;font-weight:700;
  color:var(--text-muted);display:flex;align-items:center;justify-content:center;
  min-height:56px;transition:var(--transition);
}
.partner-logo:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 4px 16px rgba(0,0,0,0.04)}
.testimonial{
  background:var(--bg-light-2);border-radius:var(--radius-card);
  padding:36px;box-shadow:var(--shadow-light);
  border-left:4px solid var(--primary);
  margin-bottom:32px;
}
.testimonial p{font-size:16px;line-height:1.8;color:var(--text-dark);margin-bottom:16px}
.testimonial .author{font-size:13px;color:var(--text-muted)}
.trust-badges{display:flex;gap:16px;flex-wrap:wrap}
.trust-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--bg-light-2);border:1px solid #e2e8f0;
  padding:10px 22px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--text-dark);
  box-shadow:0 2px 8px rgba(0,0,0,0.04);
}
.trust-badge i{color:var(--primary)}

/* CTA 转化区 */
.cta-section{
  background:var(--bg-dark);position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-section::before{
  content:'';position:absolute;inset:0;background:rgba(10,15,30,0.88);z-index:1;
}
.cta-section .grid-container{position:relative;z-index:2;text-align:center}
.cta-section h2{font-size:34px;font-weight:800;color:#fff;margin-bottom:14px;line-height:1.3}
.cta-section p.sub{font-size:17px;color:rgba(255,255,255,0.7);margin-bottom:38px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-note{font-size:13px;color:rgba(255,255,255,0.4);margin-top:20px}

/* 订阅区 */
.newsletter-section{background:var(--bg-light);color:var(--text-dark)}
.newsletter-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.newsletter-text h2{font-size:28px;font-weight:800;color:var(--text-dark);margin-bottom:12px}
.newsletter-text p{color:var(--text-muted);font-size:16px;line-height:1.7}
.newsletter-form{
  background:var(--bg-light-2);border-radius:var(--radius-card);
  padding:36px;box-shadow:var(--shadow-light);border:1px solid #e2e8f0;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-group label{font-size:14px;font-weight:600;color:var(--text-dark);margin-bottom:6px;display:block}
.form-group input,.form-group select{
  width:100%;height:46px;border:1px solid #CBD5E1;border-radius:var(--radius-btn);
  padding:0 16px;font-size:15px;color:var(--text-dark);background:#fff;
  transition:var(--transition);
}
.form-group input:focus,.form-group select:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,229,160,0.2);
}
.form-group input::placeholder{color:#94A3B8}
.newsletter-form .btn-dark{width:100%;justify-content:center}
.form-success{
  display:none;background:rgba(0,229,160,0.1);border:1px solid rgba(0,229,160,0.3);
  border-radius:8px;padding:12px 16px;font-size:14px;color:#0a7a54;margin-top:14px;
}

/* FAQ */
.faq-section{background:var(--bg-dark)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);
  border-radius:12px;margin-bottom:14px;overflow:hidden;
  transition:border-color 0.3s;
}
.faq-item[open]{border-color:rgba(0,229,160,0.3)}
.faq-item summary{
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-primary);
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{transition:transform 0.3s;color:var(--primary);font-size:18px}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-answer{
  padding:0 24px 20px;color:var(--text-secondary);font-size:15px;line-height:1.8;
  border-left:3px solid var(--primary);margin-left:24px;margin-right:24px;margin-bottom:0;
}

/* Footer */
.site-footer{
  background:#070B14;color:var(--text-secondary);
  padding:70px 0 0;border-top:1px solid rgba(255,255,255,0.04);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:60px;
}
.footer-brand .logo-text{font-size:22px;margin-bottom:12px}
.footer-brand p{font-size:14px;line-height:1.7;max-width:300px}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:18px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-secondary);transition:var(--transition)}
.footer-col ul a:hover{color:var(--primary);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:12px}
.footer-contact i{color:var(--primary);margin-top:3px;width:16px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
}
.footer-bottom p{font-size:13px;color:var(--text-muted)}

/* 焦点可见 */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;
}

/* 动画 */
.reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity 0.4s ease,transform 0.4s ease;
}
.reveal.visible{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media(max-width:1024px){
  .main-nav{display:none}
  .header-cta .btn-primary{display:none}
  .hamburger{display:flex}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .stat-item{padding:0 20px 0 0}
  .stat-item+.stat-item{border-left:none;padding-left:0}
  .brand-grid{grid-template-columns:1fr;gap:40px}
  .brand-icons{grid-template-columns:repeat(2,1fr)}
  .trust-grid,.newsletter-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .section{padding:60px 0}
  .hero{min-height:auto;padding:80px 0 60px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn-primary,.hero-cta .btn-ghost{width:100%}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-num{font-size:30px}
  .section h2{font-size:26px}
  .brand-icons{grid-template-columns:repeat(2,1fr);gap:16px}
  .content-card-col.large-3{width:100%}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;text-align:center}
  .mobile-nav{width:100%;max-width:100%}
}

/* roulang page: category1 */
:root {
  --bg-dark: #0A0F1E;
  --bg-dark-2: #111827;
  --bg-light: #F5F7FA;
  --primary: #00E5A0;
  --primary-hover: #00C48A;
  --primary-glow: rgba(0, 229, 160, 0.35);
  --accent: #FF6B35;
  --text-primary: #E8EDF4;
  --text-secondary: #94A3B8;
  --text-dark: #1E293B;
  --border-dark: rgba(255, 255, 255, 0.10);
  --border-dark-hover: rgba(255, 255, 255, 0.16);
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.4);
  --shadow-light: 0 6px 30px rgba(15, 23, 42, 0.08);
  --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Roboto Condensed", "Oswald", "Bebas Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-title);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

::selection {
  background: rgba(0, 229, 160, .25);
  color: #fff;
}

/* ===== Foundation 栅格容器 ===== */
.grid-container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 按钮体系 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #0A1A14;
  box-shadow: 0 0 24px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, .3);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(0, 229, 160, .45), 0 8px 20px rgba(0, 0, 0, .4);
}

.btn-primary:active {
  transform: scale(.98);
}

.btn-outline {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .25);
  color: #fff;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .4);
  transform: translateY(-2px);
}

.btn-sm {
  height: 40px;
  padding: 0 22px;
  font-size: 14px;
}

.btn-lg {
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ===== Header 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 15, 30, .86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  height: 72px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 26px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 1px;
  line-height: 1;
}

.logo-text span {
  color: var(--primary);
}

.logo-sub {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  position: relative;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  transition: color .25s ease, background .25s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), rgba(0, 229, 160, .2));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .3s ease;
}

.main-nav a:hover {
  color: var(--primary);
}

.main-nav a:hover::after {
  transform: scaleX(1);
}

.main-nav a.active {
  color: var(--primary);
  font-weight: 700;
}

.main-nav a.active::after {
  transform: scaleX(1);
}

.header-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-dark-hover);
  border-radius: var(--radius-btn);
  background: rgba(255, 255, 255, .05);
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all .25s ease;
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 120px 0 100px;
  background: linear-gradient(115deg, rgba(10, 15, 30, .94) 0%, rgba(10, 15, 30, .72) 45%, rgba(10, 15, 30, .88) 100%), var(--bg-dark) url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  overflow: hidden;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 160, .16), transparent 65%);
  pointer-events: none;
}

.category-hero::after {
  content: 'YIDE';
  position: absolute;
  right: -20px;
  bottom: -70px;
  font-family: var(--font-num);
  font-size: 220px;
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 255, 255, .045);
  pointer-events: none;
  letter-spacing: 4px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin-bottom: 24px;
}

.hero-badge i {
  color: var(--primary);
}

.category-hero h1 {
  font-size: 44px;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.category-hero h1 span {
  color: var(--primary);
}

.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.hero-stat-item .stat-num {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  text-shadow: 0 0 24px var(--primary-glow);
  line-height: 1.1;
}

.hero-stat-item .stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ===== 分类说明区（亮色） ===== */
.section-light {
  background: var(--bg-light);
  color: var(--text-dark);
  padding: 88px 0;
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-primary);
  padding: 88px 0;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-tag::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.intro-left p {
  color: #475569;
  margin-bottom: 20px;
  line-height: 1.9;
}

.intro-points {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.intro-point {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.intro-point-icon {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 229, 160, .12), rgba(0, 229, 160, .04));
  color: var(--primary);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 229, 160, .25);
}

.intro-point h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.intro-point p {
  font-size: 14px;
  color: #64748B;
  line-height: 1.7;
}

.intro-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  position: relative;
}

.intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intro-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(315deg, rgba(10, 15, 30, .4), transparent 55%);
  pointer-events: none;
}

/* ===== 时间轴服务区（暗色） ===== */
.timeline-section {
  position: relative;
  overflow: hidden;
}

.timeline-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), transparent 70%);
}

.timeline-header {
  margin-bottom: 56px;
}

.timeline-header .section-desc {
  color: var(--text-secondary);
}

.timeline {
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(0, 229, 160, .15));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 30px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 14px;
  top: 30px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 5px rgba(0, 229, 160, .14), 0 0 18px var(--primary-glow);
  z-index: 2;
}

.timeline-card {
  display: flex;
  gap: 22px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  padding: 26px 28px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.timeline-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 160, .45);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .35);
}

.timeline-card-icon {
  flex: 0 0 50px;
  width: 50px;
  height: 50px;
  border-radius: 13px;
  background: rgba(0, 229, 160, .14);
  color: var(--primary);
  font-size: 21px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 229, 160, .25);
}

.timeline-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.timeline-card-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.timeline-card-body a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.timeline-card-body a i {
  transition: transform .25s ease;
}

.timeline-card-body a:hover i {
  transform: translateX(4px);
}

/* ===== 数据保障区（亮色） ===== */
.mini-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 44px;
}

.mini-stat {
  flex: 1 1 180px;
  background: #fff;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-card);
  padding: 26px 24px;
  box-shadow: var(--shadow-light);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.mini-stat:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 160, .5);
  box-shadow: 0 12px 32px rgba(15, 23, 42, .12);
}

.mini-stat .num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: var(--bg-dark);
  line-height: 1.1;
}

.mini-stat .num em {
  font-style: normal;
  color: var(--primary);
}

.mini-stat .label {
  font-size: 14px;
  color: #64748B;
  margin-top: 8px;
}

.testimonial-quote {
  padding: 32px 36px;
  background: #fff;
  border-radius: var(--radius-card);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-light);
  margin-bottom: 32px;
}

.testimonial-quote p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.testimonial-quote .quote-author {
  font-size: 14px;
  color: #94A3B8;
}

/* ===== 子分类链接带 ===== */
.category-links-bar {
  margin-top: 24px;
}

.category-links-bar h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.cat-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid #E2E8F0;
  background: #fff;
  color: #475569;
  font-size: 14px;
  font-weight: 600;
  transition: all .25s ease;
}

.cat-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 229, 160, .15);
}

.cat-pill.active {
  background: var(--bg-dark);
  border-color: var(--bg-dark);
  color: var(--primary);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s ease;
}

.faq-item:hover {
  border-color: rgba(0, 229, 160, .35);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .faq-icon {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 229, 160, .12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform .3s ease, background .3s ease;
}

.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #0A1A14;
}

.faq-item .faq-body {
  padding: 0 24px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  border-left: 3px solid var(--primary);
  margin: 0 24px 20px;
  padding: 0 0 0 16px;
}

/* ===== CTA ===== */
.section-cta {
  position: relative;
  padding: 80px 0;
  background: var(--bg-light) url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  overflow: hidden;
}

.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(245, 247, 250, .94), rgba(245, 247, 250, .78));
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-inner h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 14px;
}

.cta-inner p {
  font-size: 16px;
  color: #475569;
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.cta-inner .btn {
  margin-bottom: 12px;
}

.cta-note {
  font-size: 13px;
  color: #94A3B8;
}

/* ===== Footer ===== */
.site-footer {
  background: #070B14;
  color: #94A3B8;
  padding: 64px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, .04);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 44px;
}

.footer-brand .logo-text {
  font-size: 24px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #64748B;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: #94A3B8;
  transition: color .25s ease, padding-left .25s ease;
}

.footer-col ul a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.footer-contact i {
  color: var(--primary);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .05);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #64748B;
}

.footer-bottom i {
  color: var(--primary);
}

/* ===== 移动端菜单遮罩 ===== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 30, .6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
}

.nav-overlay.show {
  display: block;
}

/* ===== 滚动效果 ===== */
.reveal-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .45s ease, transform .45s ease;
}

.reveal-item.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1023px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    right: -320px;
    width: 300px;
    height: calc(100vh - 72px);
    background: rgba(10, 15, 30, .98);
    border-left: 1px solid var(--border-dark-hover);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 32px 24px;
    transition: right .35s ease;
    z-index: 999;
    box-shadow: -20px 0 60px rgba(0, 0, 0, .5);
  }

  .main-nav.nav-open {
    right: 0;
  }

  .main-nav a {
    display: block;
    padding: 14px 18px;
    border-radius: var(--radius-btn);
    font-size: 16px;
  }

  .main-nav a::after {
    display: none;
  }

  .main-nav a.active {
    background: rgba(0, 229, 160, .1);
  }

  .header-cta {
    display: none;
  }

  .category-hero {
    padding: 84px 0 68px;
  }

  .category-hero h1 {
    font-size: 36px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media screen and (max-width: 639px) {
  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }

  body {
    font-size: 15px;
  }

  .site-header {
    height: 64px;
  }

  .logo-text {
    font-size: 22px;
  }

  .logo-sub {
    display: none;
  }

  .main-nav {
    top: 64px;
    width: 82%;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    gap: 20px;
    padding-top: 28px;
  }

  .hero-stat-item .stat-num {
    font-size: 30px;
  }

  .section-light,
  .section-dark {
    padding: 60px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .timeline-card {
    flex-direction: column;
    gap: 14px;
    padding: 20px;
  }

  .timeline-item {
    padding-left: 52px;
  }

  .timeline::before {
    left: 15px;
  }

  .timeline-dot {
    left: 10px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .mini-stat {
    flex: 1 1 100%;
  }

  .cta-inner h2 {
    font-size: 26px;
  }

  .cta-inner .btn {
    width: 100%;
  }
}

/* ===== 减少动态偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* roulang page: article */
:root {
            --bg-dark: #0A0F1E;
            --bg-dark-2: #111827;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --primary: #00E5A0;
            --primary-hover: #00C48A;
            --primary-glow: rgba(0, 229, 160, 0.35);
            --accent: #FF6B35;
            --text-primary: #E8EDF4;
            --text-secondary: #94A3B8;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --border-dark: rgba(255, 255, 255, 0.10);
            --border-light: #E2E8F0;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.4);
            --shadow-light: 0 6px 30px rgba(15, 23, 42, 0.08);
            --transition: all 0.3s ease;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-dark);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul,
        ol {
            list-style: none;
        }

        button {
            background: none;
            border: none;
            cursor: pointer;
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-weight: 700;
            line-height: 1.3;
        }

        .grid-container {
            max-width: 1200px;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #0A1A14;
            box-shadow: 0 0 18px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 0 24px var(--primary-glow), 0 6px 16px rgba(0, 0, 0, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-glass {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.4);
            color: var(--text-primary);
        }

        .btn-sm {
            height: 36px;
            padding: 0 20px;
            font-size: 14px;
        }

        .logo {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--primary);
        }

        .logo-sub {
            font-family: "Roboto Condensed", "Oswald", "Bebas Neue", sans-serif;
            font-size: 11px;
            letter-spacing: 3px;
            color: var(--text-secondary);
            text-transform: uppercase;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            position: relative;
            text-decoration: none;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 2px;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            opacity: 1;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .menu-toggle {
            display: none;
            color: var(--text-primary);
            font-size: 24px;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            transition: background 0.3s;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(10, 15, 30, 0.6);
            z-index: 199;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--bg-dark);
            z-index: 200;
            padding: 24px;
            transition: right 0.3s ease;
            overflow-y: auto;
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-dark);
        }

        .mobile-menu-close {
            color: var(--text-primary);
            font-size: 22px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }

        .mobile-menu-close:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--primary);
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 24px;
        }

        .mobile-nav a {
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(0, 229, 160, 0.1);
            color: var(--primary);
        }

        .mobile-menu-cta {
            width: 100%;
        }

        .article-hero {
            position: relative;
            min-height: 320px;
            background: var(--bg-dark);
            display: flex;
            align-items: center;
            padding: 60px 0;
            overflow: hidden;
        }

        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 15, 30, 0.95) 0%, rgba(10, 15, 30, 0.75) 100%);
        }

        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-bottom: 28px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb a {
            background: rgba(255, 255, 255, 0.1);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s;
        }

        .breadcrumb a:hover {
            background: rgba(0, 229, 160, 0.2);
            border-color: var(--primary);
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb .current {
            background: rgba(0, 229, 160, 0.15);
            border-color: rgba(0, 229, 160, 0.3);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .article-hero h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 20px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            letter-spacing: 1px;
        }

        .article-meta {
            display: flex;
            justify-content: center;
            gap: 28px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .meta-item i {
            margin-right: 6px;
            color: var(--primary);
        }

        .article-main {
            padding: 72px 0 56px;
            background: var(--bg-light);
        }

        .article-body-wrap {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-light);
            padding: 48px 56px;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: #334155;
        }

        .article-body h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--text-dark);
            position: relative;
            padding-left: 20px;
        }

        .article-body h2::before {
            content: '#';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }

        .article-body h3 {
            font-size: 22px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text-dark);
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body img {
            border-radius: 8px;
            margin: 24px 0;
            width: 100%;
            height: auto;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(0, 229, 160, 0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-dark);
        }

        .article-body ul,
        .article-body ol {
            margin: 24px 0;
            padding-left: 24px;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 12px;
            padding-left: 4px;
        }

        .article-body a {
            color: var(--primary-hover);
            border-bottom: 1px dashed var(--primary);
        }

        .article-body a:hover {
            color: var(--primary);
            border-bottom-style: solid;
        }

        .article-body code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--accent);
        }

        .article-body pre {
            background: var(--bg-dark);
            padding: 20px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 24px 0;
            color: var(--text-primary);
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border-light);
            margin: 32px 0;
        }

        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }

        .article-empty i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .article-empty p {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .article-empty a {
            display: inline-block;
            padding: 10px 24px;
            background: var(--primary);
            color: #0A1A14;
            border-radius: var(--radius-btn);
            font-weight: 600;
        }

        .article-tags-share {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding: 28px 0;
            border-top: 1px solid var(--border-light);
            margin-top: 40px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            background: #F1F5F9;
            color: var(--text-dark);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            transition: all 0.3s;
            border: 1px solid transparent;
        }

        .tag:hover {
            background: rgba(0, 229, 160, 0.15);
            color: var(--primary);
            border-color: var(--primary);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #F1F5F9;
            color: var(--text-dark);
            font-size: 15px;
            transition: all 0.3s;
        }

        .share-btn:hover {
            background: var(--primary);
            color: #0A1A14;
            transform: translateY(-2px);
        }

        .article-back {
            margin-top: 32px;
            text-align: center;
        }

        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            background: var(--bg-dark);
            color: var(--text-primary);
            font-size: 14px;
            transition: all 0.3s;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .article-back a:hover {
            background: var(--primary);
            color: #0A1A14;
            border-color: var(--primary);
            transform: translateX(-4px);
        }

        .related-section {
            background: var(--bg-dark);
            padding: 72px 0 80px;
            border-top: 4px solid var(--primary);
        }

        .related-section h2 {
            color: var(--text-primary);
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 40px;
            text-align: center;
            position: relative;
        }

        .related-section h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin: 12px auto 0;
        }

        .related-card {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 16px;
            gap: 16px;
            transition: all 0.3s;
            height: 100%;
        }

        .related-card:hover {
            background: rgba(0, 229, 160, 0.1);
            border-color: rgba(0, 229, 160, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-dark);
        }

        .related-thumb {
            flex: 0 0 100px;
            width: 100px;
            height: 76px;
            border-radius: 8px;
            overflow: hidden;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-info {
            flex: 1;
            min-width: 0;
        }

        .related-info h3 {
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-date {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .related-date i {
            color: var(--primary);
        }

        .site-footer {
            background: #070B14;
            padding: 60px 0 20px;
            color: var(--text-secondary);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo-text {
            font-size: 24px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            color: var(--text-primary);
            font-size: 16px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            transition: all 0.3s;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-secondary);
        }

        .footer-contact i {
            color: var(--primary);
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 13px;
        }

        @media screen and (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media screen and (max-width: 768px) {
            .article-hero h1 {
                font-size: 30px;
            }

            .article-body-wrap {
                padding: 36px 24px;
            }

            .related-card {
                margin-bottom: 16px;
            }
        }

        @media screen and (max-width: 640px) {
            .header-cta .btn {
                display: none;
            }

            .article-hero {
                min-height: 280px;
                padding: 40px 0;
            }

            .article-hero h1 {
                font-size: 26px;
            }

            .article-meta {
                flex-direction: column;
                gap: 8px;
            }

            .article-main {
                padding: 40px 0 32px;
            }

            .article-body-wrap {
                padding: 24px 20px;
                border-radius: 12px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 24px;
            }

            .article-tags-share {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .related-thumb {
                flex: 0 0 80px;
                width: 80px;
                height: 60px;
            }

            .related-info h3 {
                font-size: 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
:root {
  --bg-dark: #0A0F1E;
  --bg-dark-2: #111827;
  --bg-light: #F5F7FA;
  --primary: #00E5A0;
  --primary-hover: #00C48A;
  --primary-glow: rgba(0, 229, 160, 0.35);
  --accent: #FF6B35;
  --text-primary: #E8EDF4;
  --text-secondary: #94A3B8;
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --border-dark: rgba(255, 255, 255, 0.10);
  --border-light: rgba(255, 255, 255, 0.16);
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.4);
  --shadow-light: 0 6px 30px rgba(15, 23, 42, 0.08);
  --transition-base: 0.3s ease;
  --header-height: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base); border-bottom: 1px dashed rgba(0, 229, 160, 0.3); }
a:hover { color: var(--primary); border-bottom-color: var(--primary); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin-left: auto; margin-right: auto; padding-left: 20px; padding-right: 20px; position: relative; }
@media (min-width: 1025px) { .container { padding-left: 24px; padding-right: 24px; } }
@media (max-width: 640px) { .container { padding-left: 16px; padding-right: 16px; } }

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-height);
  background: rgba(10, 15, 30, 0.85);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.site-header .header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo-wrap { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 1px;
  line-height: 1.2;
}
.logo-suffix {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.16em;
  border-left: 1px solid var(--border-dark);
  padding-left: 8px;
  line-height: 1;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.main-nav a {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: none;
  border-radius: 6px;
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary); background: rgba(0, 229, 160, 0.04); }
.main-nav a:hover::after, .main-nav a.active::after { opacity: 1; transform: scaleX(1); }
.header-cta .btn { height: 40px; padding: 0 22px; font-size: 14px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: all 0.28s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #0A1A14;
  height: 46px;
  padding: 0 28px;
  font-size: 15px;
  box-shadow: 0 0 18px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 229, 160, 0.4);
}
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 0 26px var(--primary-glow), 0 6px 16px rgba(0, 0, 0, 0.35); color: #0A1A14; }
.btn-primary:active { transform: scale(0.98); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.22);
  height: 46px;
  padding: 0 26px;
  font-size: 14px;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); color: var(--primary); border-color: rgba(0, 229, 160, 0.4); }
.btn-dark { background: #1E293B; color: #E8EDF4; height: 46px; padding: 0 28px; font-size: 15px; }
.btn-dark:hover { background: #334155; color: var(--primary); }
.mobile-menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.mobile-menu-toggle:hover { border-color: var(--primary); color: var(--primary); }
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-menu-toggle { display: flex; }
}
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--bg-dark-2);
  z-index: 300;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.5);
  border-left: 1px solid var(--border-dark);
}
.mobile-menu.open { right: 0; }
.mobile-menu .mobile-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  color: var(--text-secondary);
  border-radius: 8px;
  border-bottom: none;
  font-weight: 500;
}
.mobile-menu .mobile-nav a:hover, .mobile-menu .mobile-nav a.active { color: var(--primary); background: rgba(0, 229, 160, 0.04); }
.mobile-menu .mobile-menu-close {
  align-self: flex-end;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 16px;
  margin-bottom: 16px;
}
.mobile-menu .mobile-menu-close:hover { color: var(--accent); border-color: var(--accent); }
.mobile-menu .mobile-cta { margin-top: auto; }
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 290; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.overlay.show { opacity: 1; pointer-events: auto; }

/* Page Banner */
.page-banner {
  background-color: var(--bg-dark);
  position: relative;
  overflow: hidden;
  padding: 100px 0 80px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.page-banner .banner-bg {
  position: absolute;
  inset: 0;
  background-image: url(/assets/images/backpic/back-2.webp);
  background-size: cover;
  background-position: center 30%;
  opacity: 0.4;
}
.page-banner .banner-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 30, 0.96) 0%, rgba(10, 15, 30, 0.72) 50%, rgba(10, 15, 30, 0.85) 100%);
}
.page-banner .banner-content {
  position: relative;
  z-index: 2;
}
.breadcrumb { display: flex; gap: 6px; align-items: center; margin-bottom: 28px; flex-wrap: wrap; }
.breadcrumb a {
  font-size: 13px;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  border-bottom: none;
  transition: all 0.3s ease;
}
.breadcrumb a:hover { color: var(--primary); border-color: rgba(0, 229, 160, 0.4); }
.breadcrumb span { font-size: 13px; color: var(--text-secondary); }
.breadcrumb .current { color: var(--primary); }
.banner-title h1 { font-size: 44px; font-weight: 800; color: var(--text-primary); letter-spacing: 1px; line-height: 1.25; margin-bottom: 16px; }
.banner-title p { font-size: 16px; color: var(--text-secondary); max-width: 640px; line-height: 1.8; }
.banner-meta { display: flex; gap: 12px; align-items: center; margin-top: 24px; flex-wrap: wrap; }
.banner-meta .item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-dark-2);
  border: 1px solid var(--border-dark);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--text-secondary);
}
.banner-meta .item i { color: var(--primary); }
@media (max-width: 640px) {
  .page-banner { padding: 60px 0 48px; }
  .banner-title h1 { font-size: 30px; }
  .banner-title p { font-size: 14px; }
}

/* Section Common */
.section { padding: 80px 0; position: relative; }
.section-light { background: var(--bg-light); color: var(--text-dark); }
.section-dark { background: var(--bg-dark); }
.section-head { margin-bottom: 48px; max-width: 720px; }
.section-head .tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(0, 229, 160, 0.08);
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.35; letter-spacing: 0.5px; }
.section-light .section-head h2 { color: var(--text-dark); }
.section-head p { color: var(--text-secondary); margin-top: 12px; font-size: 15px; }
.section-light .section-head p { color: var(--text-muted); }
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
}

/* Info + Features Split */
.split-section { padding: 80px 0; }
.split-section .split-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split-left .eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.split-left h2 { font-size: 32px; font-weight: 800; line-height: 1.4; color: var(--text-dark); margin-bottom: 20px; }
.split-left p { color: var(--text-muted); line-height: 1.85; font-size: 15px; margin-bottom: 16px; }
.split-features { display: flex; flex-direction: column; gap: 20px; }
.split-features .feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  padding: 20px 24px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-light);
  border-left: 3px solid var(--primary);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.split-features .feature-item:hover { transform: translateY(2px); box-shadow: 0 8px 30px rgba(15, 23, 42, 0.14); }
.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(0, 229, 160, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}
.feature-body h4 { color: var(--text-dark); font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.feature-body p { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin-bottom: 0; }
@media (max-width: 1024px) {
  .split-section .split-inner { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .split-section { padding: 56px 0; }
  .split-left h2 { font-size: 26px; }
  .split-features .feature-item { padding: 16px; }
}

/* Showcase Cards - 体育营销案例 */
.case-showcase { background: var(--bg-dark); }
.case-showcase .case-grid { margin-top: -8px; }
.case-card {
  background: rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.case-card:hover { transform: translateY(-4px); border-color: rgba(0, 229, 160, 0.3); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45); }
.case-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .case-media img { transform: scale(1.04); }
.case-media .case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(0, 229, 160, 0.9);
  color: #0A1A14;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
}
.case-media .case-arrow {
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(10, 15, 30, 0.65);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 14px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.case-card:hover .case-arrow { opacity: 1; transform: translateX(0); }
.case-arrow:hover { color: var(--primary); border-color: var(--primary); }
.case-content { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.case-content h3 { color: var(--text-primary); font-size: 20px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
.case-content p { color: var(--text-secondary); font-size: 14px; line-height: 1.75; flex: 1; margin-bottom: 16px; }
.case-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 14px; margin-top: auto; }
.case-footer .metrics { font-size: 13px; color: var(--text-secondary); font-family: "Roboto Condensed", "Oswald", "Bebas Neue", sans-serif; letter-spacing: 0.04em; }
.case-footer .metrics i { color: var(--primary); margin-right: 4px; }
.case-footer a { font-size: 14px; color: var(--primary); border-bottom: 1px dashed rgba(0, 229, 160, 0.4); }
.case-footer a:hover { color: var(--primary-hover); border-bottom-color: var(--primary); }
@media (max-width: 1024px) {
  .case-content { padding: 20px; }
  .case-content h3 { font-size: 18px; }
}
@media (max-width: 640px) {
  .case-media { aspect-ratio: 16 / 10; }
}

/* Timeline Section - 营销服务流程 */
.timeline-section { background: var(--bg-light); }
.timeline-container { max-width: 900px; }
.timeline-step { display: flex; gap: 24px; margin-bottom: 0; padding-bottom: 36px; position: relative; }
.timeline-step:last-child { padding-bottom: 0; }
.timeline-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(0, 229, 160, 0.1));
}
.timeline-step:last-child::before { display: none; }
.timeline-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Roboto Condensed", "Oswald", "Bebas Neue", sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(0, 229, 160, 0.12);
  margin-top: 4px;
}
.timeline-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 28px;
  box-shadow: var(--shadow-light);
  border-left: 3px solid var(--primary);
  flex: 1;
}
.timeline-card h3 { color: var(--text-dark); font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.timeline-card p { color: var(--text-muted); font-size: 14px; line-height: 1.75; margin-bottom: 0; }
@media (max-width: 640px) {
  .timeline-step { gap: 16px; }
  .timeline-card { padding: 18px 18px; }
  .timeline-card h3 { font-size: 16px; }
}

/* Sub Category Links */
.subcat-section { background: var(--bg-dark); padding: 48px 0; border-top: 1px solid rgba(255,255,255,0.04); }
.subcat-links { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.subcat-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: none;
  transition: all 0.3s ease;
}
.subcat-links a i { font-size: 12px; opacity: 0.6; }
.subcat-links a:hover { border-color: rgba(0, 229, 160, 0.5); color: var(--primary); background: rgba(0, 229, 160, 0.06); transform: translateY(-2px); }
.subcat-links a.active { border-color: var(--primary); color: var(--primary); background: rgba(0, 229, 160, 0.1); }
@media (max-width: 640px) {
  .subcat-links a { padding: 8px 16px; font-size: 13px; }
}

/* CTA Band */
.cta-band {
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(0, 229, 160, 0.06) 0%, transparent 40%, transparent 60%, rgba(255, 107, 53, 0.04) 100%);
}
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { color: var(--text-primary); font-size: 32px; font-weight: 800; margin-bottom: 14px; line-height: 1.4; }
.cta-inner p { color: var(--text-secondary); font-size: 15px; margin-bottom: 32px; }
.cta-inner .btn-primary { height: 52px; padding: 0 40px; font-size: 16px; }
.cta-note { margin-top: 16px; font-size: 13px; color: var(--text-muted); }
@media (max-width: 640px) {
  .cta-band { padding: 56px 0; }
  .cta-inner h2 { font-size: 26px; }
  .cta-inner .btn-primary { width: 100%; max-width: 320px; }
}

/* Footer */
.site-footer {
  background: #070B14;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 64px 0 0;
  color: var(--text-secondary);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-brand .logo-text { font-size: 28px; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-col h4 { color: var(--text-primary); font-size: 15px; font-weight: 600; margin-bottom: 20px; letter-spacing: 0.06em; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li { font-size: 14px; }
.footer-col ul li a { color: var(--text-secondary); border-bottom: none; }
.footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--text-secondary); }
.footer-contact i { color: var(--primary); margin-top: 4px; }
.footer-bottom {
  padding: 24px 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .site-footer { padding-top: 48px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Reveal Animations */
.reveal { opacity: 0; transform: translateY(8px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Focus Visible */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* roulang page: category3 */
:root {
            --bg-dark: #0A0F1E;
            --bg-dark-2: #111827;
            --bg-light: #F5F7FA;
            --primary: #00E5A0;
            --primary-glow: rgba(0, 229, 160, 0.35);
            --primary-hover: #00C48A;
            --accent: #FF6B35;
            --text-primary: #E8EDF4;
            --text-secondary: #94A3B8;
            --text-dark: #1E293B;
            --border-dark: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.4);
            --shadow-light: 0 6px 30px rgba(15, 23, 42, 0.08);
            --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Roboto Condensed", "Oswald", "Bebas Neue", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-title);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul {
            list-style: none;
        }
        .grid-container {
            max-width: 1200px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(10, 15, 30, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dark);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(10, 15, 30, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo-area {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 24px;
            font-weight: 900;
            letter-spacing: 1px;
            color: var(--text-primary);
            line-height: 1;
        }
        .logo-text span {
            color: var(--primary);
        }
        .logo-sub {
            font-family: var(--font-num);
            font-size: 12px;
            letter-spacing: 3px;
            color: var(--text-secondary);
            text-transform: uppercase;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            letter-spacing: 0.5px;
            transition: color 0.25s ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            transition: width 0.3s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #0A1A14;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            transition: all 0.25s ease;
            box-shadow: 0 0 18px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
            line-height: 1.4;
            border: none;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 0 26px var(--primary-glow), 0 6px 16px rgba(0, 0, 0, 0.35);
            color: #0A1A14;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary.btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            transition: all 0.25s ease;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.35);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 10px;
            cursor: pointer;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .mobile-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero Banner ===== */
        .page-hero {
            position: relative;
            padding: 180px 0 100px;
            background: linear-gradient(135deg, rgba(10, 15, 30, 0.94) 0%, rgba(10, 15, 30, 0.7) 55%, rgba(8, 12, 24, 0.85) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-hero::before {
            content: 'YIDE';
            position: absolute;
            right: -40px;
            top: 50%;
            transform: translateY(-50%);
            font-family: var(--font-num);
            font-size: 220px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.03);
            letter-spacing: 10px;
            pointer-events: none;
            user-select: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--text-primary);
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .hero-badge i {
            color: var(--primary);
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-hero h1 span {
            color: var(--primary);
        }
        .page-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 56px;
            max-width: 600px;
        }
        .hero-stat {
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            text-align: center;
            transition: border-color 0.3s ease;
        }
        .hero-stat:hover {
            border-color: rgba(0, 229, 160, 0.3);
        }
        .hero-stat .num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            text-shadow: 0 0 20px var(--primary-glow);
        }
        .hero-stat .label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== Intro Section (Light) ===== */
        .intro-section {
            background: var(--bg-light);
            color: var(--text-dark);
            padding: 100px 0;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
        }
        .intro-left .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-hover);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .intro-left h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 20px;
        }
        .intro-left p {
            font-size: 15px;
            color: #475569;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-top: 16px;
        }
        .feature-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-light);
            border: 1px solid #E2E8F0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(15, 23, 42, 0.12);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 229, 160, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--primary-hover);
            font-size: 18px;
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .feature-item p {
            font-size: 14px;
            color: #64748B;
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Showcase Section (Dark) ===== */
        .showcase-section {
            background: var(--bg-dark);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .showcase-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), transparent);
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 420px;
            line-height: 1.7;
            margin: 0;
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .showcase-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            flex-direction: column;
        }
        .showcase-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 229, 160, 0.35);
            box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
        }
        .showcase-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .showcase-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .showcase-card:hover .showcase-media img {
            transform: scale(1.05);
        }
        .showcase-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            background: rgba(0, 229, 160, 0.92);
            color: #0A1A14;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .showcase-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .showcase-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .showcase-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .showcase-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
        }
        .showcase-meta span {
            font-size: 13px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .showcase-meta span i {
            color: var(--primary);
            font-size: 12px;
        }
        .text-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
            transition: gap 0.3s ease;
        }
        .text-link:hover {
            gap: 10px;
            color: var(--primary);
        }

        /* ===== Process Section (Light) ===== */
        .process-section {
            background: var(--bg-light);
            color: var(--text-dark);
            padding: 100px 0;
        }
        .process-section .section-header h2 {
            color: var(--text-dark);
        }
        .process-section .section-header p {
            color: #64748B;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-light);
            border: 1px solid #E2E8F0;
            position: relative;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1);
        }
        .process-step .step-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--primary-hover);
            line-height: 1;
            margin-bottom: 12px;
            opacity: 0.3;
        }
        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: #64748B;
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Sub Nav Section ===== */
        .subnav-section {
            background: var(--bg-dark);
            padding: 60px 0;
            border-bottom: 1px solid var(--border-dark);
        }
        .subnav-pills {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .subnav-pills a {
            padding: 10px 28px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }
        .subnav-pills a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(0, 229, 160, 0.08);
        }
        .subnav-pills a.active {
            background: var(--primary);
            color: #0A1A14;
            border-color: var(--primary);
            box-shadow: 0 0 18px var(--primary-glow);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(10, 15, 30, 0.95), rgba(10, 15, 30, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 100px 0;
            text-align: center;
            position: relative;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        .cta-section .btn-primary {
            font-size: 16px;
            padding: 14px 40px;
        }
        .cta-note {
            margin-top: 20px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070B14;
            padding: 70px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }
        .footer-brand .logo-text {
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-contact i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== Reveal Animation ===== */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 15, 30, 0.97);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 30px;
                gap: 18px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 16px;
                color: var(--text-primary);
            }
            .mobile-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .page-hero {
                min-height: 420px;
                padding: 140px 0 70px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .showcase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 640px) {
            .page-hero {
                min-height: 360px;
                padding: 120px 0 56px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-ghost {
                width: 100%;
            }
            .hero-stats {
                grid-template-columns: repeat(1, 1fr);
                gap: 12px;
                margin-top: 36px;
            }
            .hero-stat {
                display: flex;
                align-items: center;
                justify-content: space-between;
                text-align: left;
            }
            .intro-section,
            .showcase-section,
            .process-section,
            .cta-section {
                padding: 64px 0;
            }
            .intro-left h2,
            .section-header h2,
            .process-section .section-header h2,
            .cta-section h2 {
                font-size: 24px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                margin-bottom: 32px;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .subnav-pills {
                gap: 10px;
            }
            .subnav-pills a {
                padding: 8px 18px;
                font-size: 13px;
            }
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .showcase-card:focus-within {
            border-color: rgba(0, 229, 160, 0.5);
        }

        /* ===== Foundation reset overrides ===== */
        .menu {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .menu>li {
            margin: 0;
        }
        .topbar {
            background: transparent;
        }
        .callout {
            margin: 0;
        }

/* roulang page: category4 */
:root {
            --bg-dark: #0A0F1E;
            --bg-dark-2: #111827;
            --bg-light: #F5F7FA;
            --bg-white: #FFFFFF;
            --primary: #00E5A0;
            --primary-hover: #00C48A;
            --primary-glow: rgba(0, 229, 160, 0.35);
            --accent: #FF6B35;
            --text-primary: #E8EDF4;
            --text-secondary: #94A3B8;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --border-dark: rgba(255, 255, 255, 0.10);
            --border-dark-strong: rgba(255, 255, 255, 0.16);
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-pill: 999px;
            --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.4);
            --shadow-light: 0 6px 30px rgba(15, 23, 42, 0.08);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Roboto Condensed", "Oswald", "Bebas Neue", sans-serif;
            --header-h: 72px;
            --section-pad: 96px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-h);
        }

        body {
            font-family: var(--font-cn);
            font-size: 15.5px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        a:hover,
        a:focus {
            color: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-cn);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 18px;
            color: inherit;
        }

        p {
            margin: 0 0 18px;
        }

        ul,
        ol {
            margin: 0 0 18px;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .grid-x>.cell {
            min-width: 0;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-light {
            background: var(--bg-light);
            color: var(--text-dark);
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-primary);
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--primary);
            text-transform: uppercase;
        }

        .section-label::before {
            content: '';
            width: 18px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }

        .section-title {
            font-size: 30px;
            line-height: 1.3;
            margin-top: 8px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 540px;
        }

        .section-dark .section-desc {
            color: var(--text-secondary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            border: none;
            padding: 0 24px;
            height: 48px;
            transition: all 0.3s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #0A1A14;
            box-shadow: 0 0 24px var(--primary-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            color: #0A1A14;
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .btn-ghost:active {
            transform: scale(0.97);
        }

        .btn-sm {
            height: 40px;
            padding: 0 18px;
            font-size: 14px;
        }

        .btn-lg {
            height: 54px;
            padding: 0 32px;
            font-size: 16px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            transition: gap 0.3s ease;
        }

        .text-link:hover {
            gap: 10px;
        }

        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            background-color: var(--bg-dark);
            padding: calc(var(--header-h) + 64px) 0 72px;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(10, 15, 30, 0.94) 20%, rgba(10, 15, 30, 0.62) 65%, rgba(10, 15, 30, 0.72) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, var(--primary-glow), transparent 70%);
            z-index: 1;
            opacity: 0.35;
            pointer-events: none;
        }

        .hero-grid {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 56px 56px;
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            margin-bottom: 22px;
        }

        .hero-badge .badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        .hero-title {
            font-size: 44px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .hero-title span {
            margin-left: 12px;
            font-size: 32px;
            font-weight: 600;
            color: var(--primary);
        }

        .hero-sub {
            font-size: 19px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.12);
        }

        .stat-item {
            background: rgba(10, 15, 30, 0.72);
            padding: 22px 24px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .stat-num {
            font-family: var(--font-en);
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 4px;
            display: flex;
            align-items: baseline;
            gap: 2px;
        }

        .stat-num small {
            font-size: 16px;
            color: var(--text-secondary);
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .intro-section {
            padding: 88px 0;
        }

        .intro-copy h2 {
            font-size: 28px;
            color: var(--text-dark);
            margin-bottom: 20px;
            position: relative;
            padding-left: 18px;
        }

        .intro-copy h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 999px;
            background: var(--primary);
        }

        .intro-copy p {
            color: var(--text-muted);
            font-size: 15.5px;
        }

        .intro-points {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .point-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 20px 24px;
            border: 1px solid #E8EDF4;
            box-shadow: var(--shadow-light);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .point-card:hover {
            box-shadow: 0 10px 32px rgba(15, 23, 42, 0.12);
            transform: translateY(-2px);
        }

        .point-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 12px;
            background: rgba(0, 229, 160, 0.12);
            color: #00B881;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .point-card h3 {
            font-size: 16px;
            margin-bottom: 4px;
            color: var(--text-dark);
        }

        .point-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .data-section {
            position: relative;
            background: var(--bg-dark);
            border-top: 4px solid rgba(0, 229, 160, 0.25);
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0.4;
        }

        .data-section .section-desc {
            margin-bottom: 0;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 44px;
        }

        .data-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-card);
            padding: 28px 24px 22px;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 160, 0.5), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .data-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 160, 0.45);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
        }

        .data-card:hover::before {
            opacity: 1;
        }

        .data-card-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
        }

        .data-num {
            font-family: var(--font-en);
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            display: flex;
            align-items: baseline;
            gap: 4px;
            text-shadow: 0 0 20px rgba(0, 229, 160, 0.35);
        }

        .data-num small {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            text-shadow: none;
        }

        .data-bars {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            height: 46px;
            padding-bottom: 2px;
        }

        .data-bars span {
            width: 9px;
            border-radius: 4px 4px 0 0;
            background: linear-gradient(to top, rgba(0, 229, 160, 0.25), var(--primary));
            height: var(--h, 50%);
            transition: height 0.4s ease;
        }

        .data-card-body {
            margin-bottom: 16px;
        }

        .data-card-title {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .data-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .data-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.3s ease;
        }

        .data-card-link:hover {
            gap: 10px;
        }

        .flow-section {
            padding: 88px 0;
        }

        .flow-media {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            position: relative;
        }

        .flow-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .flow-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 15, 30, 0.15), transparent 40%);
            pointer-events: none;
        }

        .flow-steps {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .flow-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .step-num {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 14px;
            background: var(--primary);
            color: #0A1A14;
            font-family: var(--font-en);
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 16px rgba(0, 229, 160, 0.3);
        }

        .flow-step h3 {
            font-size: 16px;
            margin-bottom: 4px;
            color: var(--text-dark);
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .subcat-section {
            padding: 72px 0;
        }

        .subcat-head {
            text-align: center;
            margin-bottom: 36px;
        }

        .subcat-head h2 {
            font-size: 24px;
            color: #fff;
            margin-bottom: 6px;
        }

        .subcat-head p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .subcat-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .subcat-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.16);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .subcat-pill:hover {
            color: #fff;
            border-color: rgba(0, 229, 160, 0.5);
            background: rgba(0, 229, 160, 0.08);
        }

        .subcat-pill.active {
            background: var(--primary);
            color: #0A1A14;
            border-color: transparent;
            font-weight: 700;
            box-shadow: 0 0 18px rgba(0, 229, 160, 0.35);
        }

        .faq-section {
            padding: 88px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .faq-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .faq-head h2 {
            font-size: 28px;
            color: #fff;
            margin-bottom: 8px;
        }

        .faq-head p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item[open] {
            border-color: rgba(0, 229, 160, 0.4);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            list-style: none;
        }

        .faq-q::-webkit-details-marker {
            display: none;
        }

        .faq-q .faq-icon {
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-a {
            padding: 0 22px 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 16px;
            margin-top: -4px;
        }

        .faq-a p {
            color: var(--text-secondary);
            font-size: 14.5px;
            margin-bottom: 0;
            padding-left: 16px;
            border-left: 3px solid var(--primary);
        }

        .cta-band {
            background: linear-gradient(135deg, #070B14 0%, #0F172A 50%, #070B14 100%);
            padding: 76px 0;
            position: relative;
            overflow: hidden;
            border-top: 1px solid rgba(0, 229, 160, 0.2);
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(0, 229, 160, 0.18), transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .cta-title {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-sub {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .cta-note {
            font-size: 13px;
            color: var(--text-secondary);
            opacity: 0.8;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 100;
            transition: background 0.3s ease;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .logo {
            display: inline-flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .logo-text em {
            font-style: normal;
            color: var(--primary);
        }

        .logo-en {
            font-family: var(--font-en);
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .main-nav a {
            position: relative;
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: color 0.3s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), rgba(0, 229, 160, 0.2));
            opacity: 0;
            transform: scaleX(0.5);
            transform-origin: left;
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            cursor: pointer;
        }

        .nav-toggle-bar {
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 999px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .site-footer {
            background: #070B14;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo-text {
            font-size: 26px;
            margin-bottom: 12px;
            display: block;
        }

        .footer-brand p {
            font-size: 14.5px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li {
            font-size: 14px;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13.5px;
        }

        .footer-bottom p {
            margin: 0;
        }

        .reveal {
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            :root {
                --section-pad: 72px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 900px) {
            .main-nav {
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                background: rgba(10, 15, 30, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 16px 24px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }

            .main-nav a {
                padding: 12px 14px;
                font-size: 16px;
                border-radius: 10px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }

            .main-nav a:last-child {
                border-bottom: none;
            }

            .main-nav a.active {
                background: rgba(0, 229, 160, 0.1);
            }

            .main-nav a::after {
                display: none;
            }

            .site-header.nav-open .main-nav {
                display: flex;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .site-header.nav-open .nav-toggle-bar {
                background: var(--primary);
            }

            .site-header.nav-open .nav-toggle-bar:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }

            .site-header.nav-open .nav-toggle-bar:nth-child(2) {
                opacity: 0;
            }

            .site-header.nav-open .nav-toggle-bar:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }
        }

        @media (max-width: 640px) {
            :root {
                --section-pad: 56px;
                --header-h: 64px;
            }

            body {
                font-size: 15px;
            }

            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .logo-en {
                display: none;
            }

            .hero {
                padding: calc(var(--header-h) + 40px) 0 48px;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-title span {
                font-size: 26px;
                margin-left: 8px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .hero-desc {
                font-size: 15px;
                margin-bottom: 24px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                margin-bottom: 32px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }

            .stat-item {
                padding: 16px 18px;
            }

            .stat-num {
                font-size: 28px;
            }

            .stat-label {
                font-size: 12px;
            }

            .section-title {
                font-size: 24px;
            }

            .intro-section {
                padding: 56px 0;
            }

            .intro-copy h2 {
                font-size: 22px;
            }

            .intro-points {
                margin-top: 24px;
            }

            .data-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: 24px;
            }

            .data-card {
                padding: 24px 20px 18px;
            }

            .data-num {
                font-size: 36px;
            }

            .flow-section {
                padding: 56px 0;
            }

            .flow-media img {
                min-height: 220px;
            }

            .flow-steps {
                margin-top: 24px;
            }

            .subcat-nav {
                gap: 10px;
            }

            .subcat-pill {
                padding: 8px 18px;
                font-size: 13px;
            }

            .cta-title {
                font-size: 24px;
            }

            .cta-actions {
                flex-direction: column;
                gap: 12px;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }

            html {
                scroll-behavior: auto;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }
        }